element of coal seam occurrence

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中文释义

煤层要素

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单词结构：

element of coal seam occurrence

字母数：31

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🎯 重点记忆：

  • 单词拼写：element of coal seam occurrence
  • 核心含义：煤层要素

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更新时间：2026-03-25 02:39:11